More than 11 million drivers are at risk of facing Low Emission Zone fines as four major councils contemplate bringing in clean air schemes. The move comes as cash cow LEZ schemes in operation around the UK have brought in nearly £400million for local authorities this year alone through fines. According to experts, local authorities have fined drivers £381million this year for entering a LEZ with a non-compliant vehicle. There are currently 15 emissions schemes in the UK, with London being the biggest in operation. Four other local authorities are contemplating adding their own zone, including…